901408020490

素因数分解:

$2^1\times 5^1\times {\mathrm{397}}^1\times {\mathrm{227054917}}^1$

素因数の和:227055321

約数の個数: 16

約数和(自身を含む): 1626621432552

約数和(自身を除く): 725213412062

約数列:

[1, 2, 5, 10, 397, 794, 1985, 3970, 227054917, 454109834, 1135274585, 2270549170, 90140802049, 180281604098, 450704010245, 901408020490]

約数ペア:

[(1, 901408020490), (2, 450704010245), (5, 180281604098), (10, 90140802049), (397, 2270549170), (794, 1135274585), (1985, 454109834), (3970, 227054917)]